Locomotive-boiler.



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. 'qui V hr1/HIEP PATENTED JUNE A19, l9 06.

H. J. TRAVIS. LOCOMOTIVE BOILER. APPLICATION FILED MAY 12. 1905.

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' H. J. TRAVIS. 110001110131112 11011211.' l f APPLIOATION FILED 11u12. 1905.

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' .To all wiz/0m,r it may concern;-

HERBERT Jj TEAvrs, oir-NEW YORK. N.. Y@ s l' LoooMTwE-BOILER.; Q l

Be it known that' I, HERBERT J TRAVIS, a citizen ofthe United States, and a resident of the borough of Brooklyn, inthe city and State of New Yorkhave invented a new and useful Locomotive-Boiler, of the following one of the locomotive-'boilers at present in use,land one of theradvantageou's features of- 'is a specification.

My invention relates to locomotivefboilera -the object bein to provide aboiler of this type which sha be capable of burning ulverized ,fuel with great economy yand i efciency. f. e

' In the accompanying drawings, Figure 1 is a artial longitudinal vertical sectionthrough a oiler embodying myinvention. Fi' 2 is a transverse section in the plane of the ine- A A of Fi Land'Fig. 3 is a horizontal-section inthe p ane of the line BAB of Fig.' 1.

The boiler, so far as its external shape and general structure is concerned, may be any my invention is that it maybe readily applied lto boilers at present in use, as well as to the steam-dome by 6. The rear part 'of the vfire-chamber is separated from the frontk part throughout a considerable portion of its 4height by a brick wall 7, which starting at the bottom 8 extends upwardly and gradually curves over toward the-rear end of the' boiler, inally terminating at a point spaced from the topofl the :lire-chamber a distance suiiicient to permit the/products of combustion to assinto the front part of the chamber.` T e brick wall 7 is supported by a series of water-tubes 9, which are secured at l their upper ends in the rear wall of the fire-- chamber at or near-its to and 'curve down- Wardly and-` forwardly, oused within the brick wall 7 until they reach' a oint near the 'V bottom 10 of thefront part o the chamber and thence extend exposed alongthe said i Specification of Letters Patent. 'Application sled my 12,1905'. serial Nt. 260,099.'

Patented; une 19, 1906.

front part of the chamber to the front wall of the fire-chamber, where their lower ends are secured, the said tubes.9 forming circulating connections between the water-spaces at the front and rear of thelire-chamber and at thel same time a support for the wall 7.

` Tov 'furthers'trengthen the wall `7 and increasel the water-circulating space, tubes 11,

preferably alternating with the tubes 9, conneet with the top wall of. the fire-chamber over the top of the wall 7 and extend downwardly, following the curve of thewall 7 in' proximity to the lfront of theV wall and thence along near the bottom ofthe front part of the iire-chamber to theirconnection with the front wall of the chamber. The bottoms 8f and 1() of the Aparts of the fire-chamber are brick-lined'.

he pulverized fuelmixed with air is admitted at 13 through'the .rear wall of the firechamber and near the.` bottom thereof. Above the fuel-entrance 13 an arched brick Ywall 14 is located and projects into the firechamber one-.third of the distance, more or less, from the outer Wall of the chamber to4 the brick wall 7 for directing the pulveriz'ed fuel and air toward the lowerportion of the wall7. An upright brick linin 15 extends from the bottom .8 u halfthe eight ofthe outer or rear wall o the chamber, more or less. Transverse water-circulating tubes 16 and .17 extend across the fire-chamberv near the lower front face of the wall`7 to hold the v tubes 9 and 11 in position. and atthe same time vincrease the water-heating surface.

In operation the fuel is i nited as it enters the .rear part of the iire-c amber, and the masys of ilamey impinges against the wall -7 and is deflected by `said wall upwardly and rearwardly, heatin the wall 7 to a high degree and also the tu es 9 the mass of flame passing thence over the wall 7 and in its course impinging against Vthe top wall ofthe fire,-

chamber, then in passing through the front part `of the fire-chamber coming vinto intimate contact with the tubes 11, 16, and 17 and witlithe walls of the fire-chamber, and

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finallyl assing tothe."vuptake lthrough the group o fire-tubes 5.

The structure is a very efficient one for transmitting to the Water the heat from the mass of lameresulting from burning pulverized fuel in suspension and is so developed that it maybe readily applied to locomotives v at present in common use.

what 1.01am is- 1. The combination with the fire-chamber f of a locomotive provided with an opening for the discharge of pulverized fuel through its k rear Wall, of a partition-Wall extending upwardly and rearwardly from the bottom of the chamber intermediate the ends thereof,

said'wall being located opposite the opening l for the discharge of pulverized fuel, and composed of superposed bricks andwater-circulating tubesI connected with the walls of the fire-chamber andv extending through the partition-wall, forming a support for the bricks. 2. The combination with the fire-chamber of a locomotive provided with an openin for the discharge of pulverized fuel throug its rear wall, of a partition-Wall extending up- Wardly and rearwardly from the bottom of the chamber intermediate the ends thereof, saidwall being located opposite the opening for the discharge of pulverized fuel, and composed of superposed bricks and water-circulatin tubes connected with the walls of the fire-c amber and extending from the upper part of the chamber to thelower part thereof and through the partition-wall, said .tubes formin a sup ort for the bricks.

3. T e com ination with the lire-chamber of a locomotive, of a partition-wall uprising from the bottom ofthe chamber intermediate ofthe ends of the chamber, water-circulating tubes housed Within the wall and water-circulating tubes exterior to the wall and forming a support for the wall.

4. The combination with the fire-chamber of a locomotive, provided with a partitionwall extending upwardly from the bottom of the chamber intermediate of the ends of the chamber, of water-circulating tubes forming l a support for the wall, the said tubes being extended along the front portion of the firechambcr near the bottom thereof.

5. The combination with the fire-chamber of a locomotive, provided with a partitionwall uprising from the bottom thereof and terminating at a point below the top ofthe chamber, of water-circulating tubes in proximity to the said wall and forming a support for the wall, the said tubes being disposed in a general longitudinal direction withinv tlie chamber and transverse water-circulating tubes fo'r holding the said Wall-supportingv tubes in position. I

In testimony that Il claim theforegoing as lmy'invention I have signed my name, in presence of two witnesses, this 10th day of May, 1905.

I ,HERBERT J. TRAVIS.

Witnesses: FREDK. HAYNES,

' HENRY THIEME. 

